A CRANE TROLLEY ASSEMBLY, A CRANE AND A SYSTEM COMPRISINGTHE ASSEMBLY AND ASSOCIATED METHODS

The invention relates to a crane trolley assembly (604',604'',604''') comprising: - a crane trolley (603a,603b,603c,603d,603e,603f) configured for guided movement along a beam (601,602) of a crane (600); - a lifting frame (504) configured for connection to a storage container (106) to lift the storage container (106) from above through a first vertical movement range (R1) and a second vertical movement range (R2) of the lifting frame (504); - a plurality of lifting members (505) suspending the lifting frame (504) below the crane trolley (603a,603b,603c,603d,603e,603f) for lifting and lowering the lifting frame (504) through at least the second vertical movement range (R2); and - a stabilizer (620',620'',620''') extending below the crane trolley (603a,603b,603c,603d,603e,603f); wherein a lower end (620L',620L'',620L''') of the stabilizer (620',620'',620''') is configured to interact with the lifting frame (504) in order to stabilize the lifting frame (504) during the first vertical movement range (R1) of the lifting frame (504), and wherein the stabilizer (620',620'',620''') and the lifting frame (504) are configured to move vertically relative each other when in the second vertical movement range (R2) of the lifting frame (504). The invention further relates to an associated automated storage and retrieval system and methods of transferring a storage container.